20265973

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{463}}^1$

素因数の和:533

約数の個数: 24

約数和(自身を含む): 25813248

約数和(自身を除く): 5547275

約数列:

[1, 7, 13, 37, 91, 169, 259, 463, 481, 1183, 3241, 3367, 6019, 6253, 17131, 42133, 43771, 78247, 119917, 222703, 547729, 1558921, 2895139, 20265973]

約数ペア:

[(1, 20265973), (7, 2895139), (13, 1558921), (37, 547729), (91, 222703), (169, 119917), (259, 78247), (463, 43771), (481, 42133), (1183, 17131), (3241, 6253), (3367, 6019)]